Gas-governor.



No. 718,592. PA'BNTBD JAN. 13, 1903.

J. ZANDBR.

GAS GOVERNOR.

APrLIoATIoN Hmm JAN. 9. 1902.

I0 IODEL.

LE" .2., `9 l' a l el c/ /b (Lz\e UNITED STATES PATENT OFFICE.

JHN ZANDER, OF CHICAGO, ILLINOIS.

GAS-GOVERNOR.

SPECIFICATION forming part of Letters 'Patent No 718,592, dated January 13, 1903.

Application filed January 9, 1902. Serial No. 89.019. v(No modelJ To ali whom it may concern:

Beit known thatI,JOHNZANDER,a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented a certain new and useful Improvement in Gas- Governors, of which the following is a specilication.

It is desirable and necessary where illumihating-gas is burned by the cubic foot to provide means by which a certain and predetermined volume of gas will be used no matter what may be the pressure of gas in the main or supply-pipe and regardless of the distance from the source of supply.

The primary object of this invention is to construct a regulator or governor adapted to be attached to the nipple or coupling of an overhead or ceiling gas-pipe or otherwise for the purpose of controlling and regulating the volume of gas supplied to the burners of a fixture, to so control the flow of gas that the required amount necessary for the illumination may be delivered, to prevent undue` pressure of gas in the burners, to prevent the passage of an amount of gas greater than that required for the purpose of illumination, and to construct a regulator which will be simple in its nature and positive in operation and which at the same time will be thoroughly eective and accurate under all conditions of varying pressure.

The invention consists in the features of construction and combinations of parts hereinafter described and claimed.

In the drawings, Figure lis an elevation of the gas-governor of the invention; Fig. 2, a sectional elevation of the same; Fig. 3,'a crosssectional view taken on line 3 of Figs. 1 and 2; Fig. 4, a cross-sectional view taken on line 4, of Figs. l and2; Fig. 5,a plan or top View of the casing forming the body of the regulator with the cap removed, and Fig. 6 a plan view of the inner face of the cap with the valve-stem in section.

The gas-governor of this invention is constructed with a plate or cap A, provided on its outer face with a rim or boss o., having an interior screwthread, and into which is threaded or screwed the nipple a of the over- 5o head or ceiling pipe and provided on its inner face with a tubular wall A', having an interior screw-thread, and with an annular ply steui'or tube.

shoulder a2 adjacent to the face of the plate or cap. The tubular wall A" has screwthreaded therein a hollow plug B,l having in its interior a circumferential chamber or passage B', with which a port b in the end wall of the plug connects, and in the lower end of the plug is a hole b',furnishing a passage-way and guide-wall for a hollow gas-sup- The plug, as shown, has in its lower or inner face recesses b2 for the application of a Spanner-wrench to turn the plug forregulating or changing its position higher or lower within the tubular wall. A hollow supply stem or tube C passes through the hole b and is slidably supported by the guide-wall of the hole and extends into the passage or chamber B' in the plug. The upper end or head c of the stem or tube C is of larger diameter than the port or passage b and forms a v'alve for regulating the passage of gas through the port, and the stem or tube below the head has openings'or slots c', which communicate with the interior of the stem or tube for the admission of gas from the circumferential chamber or passage of the plug into the interior of the tube. A float-disk D is fixedly attached to and surrounds the lower end of the tube, so that the gas from the tube can enter beneath the disk. The float-disk is located and operates in the chamber of a casing or shell E, which is provided with a circumferential flange e at the top coinciding with the inner face of the plate or cap A and connected thereto by means of screws e or otherwise. A packing-ring efa surrounds the ann ular shoulder a2 and is interposed between the capand the flange of the casing or shell for the purpose of tightly sealing the joint against the escape of gas.

The regulating-chamber F in the shell o1" casing E in which the float-disk is located and operates has an upwardly and slightly diverging wall f, the angle of divergence being somewhat exaggerated in the drawings for the purpose of illustration, and a seating-boss f' for the float-disk rises from thel bottom of this regulating-chamber and has on its face lugs f 2, which are circumferentially disposed and form a rest for the float-disk, when down, with openings between the lugs to allow the gas to escape from the discharge end of the stem or tube without obstruction, "since the tube is held above the face of the seatingboss by the lugs which contact with the disk. A neck G, having an interior screw-thread, projects from the lower end of the body and is separated from the regulating-chamber by a closed cross-wall g, and a discharge gas-pipe g' is screw-threaded into the neck. A by-passage H extends through an elbow H', formed integral with the body, and connects with the upper end of the regulating chamber by means of a port h in the casing or shell. A direct passage i leads from the bottom of the regulating-chamber F direct into the by-passage H, passing through the wall of the chamber, the wall of the .by-passage, and a boss I', and this passage 'L' is screw-threaded and has operating therein a screwthreaded valvestem I, by means of which direct communication can be established between the by-passage and the regulating-chamber below the float-disk. A lock-nut 11' and a washer 'i2 on the valve-stem serve to secure a perfectlytightjoint and to hold the valve-stem in a regulated position. The withdrawal of the valve-stem I opens the direct passage 'i and allows an increased amount of gas to flow into and throughv the by-passage, giving an increased supply of gas for the burners.

It will be understood that a high pressure is necessary in the mains in order to force the gas to all points of distribution and that therefore in the case of burners consuming the gas at ashort distance from the source of supply it is desirable and in many cases necessary that this high pressure in the main should be reduced at the point of consumption without any decrease for tho regulated volume of gas supplied to the burners. In operation with the governor in use the gas under the high pressure of the main enters the governor from the ceiling-pipe through the nipple or coupling u and the port b,fpass ing through the opening between the head c and the wall of the port b into the enlarged chamber or passage B', from whence it passes through the slots or openings c' into the carrying-tube C. From the lower end of theV tube the gas passes into the regulating-chamber under the tloat,exerting thereon a certain lifting effect and causing the float to rise in the chamber. When, however, the float has been raised, as shown by the dotted lines in Fig. 2, the space between the circular rim of the float and the wall of the chamber will be increased by reason of the divergence of the side wall sufficiently to allow the escape of the gas and produce an equilibrium of pressure in the entering and escaping gas.

The volu me of gas passed through thegovernor for use at the point of consumption is regulated and controlled solely and wholly by the pressure of the gas as delivered to the governor.

The volume of gas entered into the regulating or discharging chamber to pass out therefrom through the by-passage is determined by the relative conditions of the opening between the valve head or cap of the supply steinor tube and the wall of the inletport and the opening or space around the edge of the float-disk and the diverging wall of the entering the governor fromthe supply-pipe in connection with the opening or space between thei niet-port and the valve end orhead of the supply stem or' tube and the opening or annular space around the edge of the disk. Ahigh or increased pressure on the under face of the disk float, arising from a high pressure at the inlet or supply port b', raises the iloat, and with it the supply stem or tube, bringing the valve end or head of the stem or tube closer to the wall or face ofthe inlet or supply port and reducing the opening or space below the port for the admission of gas into the circumferentialchamber of the regulating-plug accordingly, and at the same time the disk float by its upward movement increases the opening or annular space around its edge, allowing more gas to. pass through the opening or space and into the regulating-chamber, with the result of a decreased volume or supply entering the governor at the supply-portl and an increased volume or supply passing into the regulating or discharging chamber around the edge of the disk float, the two volumesorsu pplies having a correlation by which the predetermined volume of gas will enter into the regulating or discharging chamber to pass out therefrom for consumption at the burner or burners. A low or reduced pressure on the under faceof the diskoat, arising from a low pressure at the inlet or supply port, lowers the float, and with it the supply stem or tube, bringing the valve end or head of the stem or tube farther away from the wall or face of the inlet or supply port, increasing the opening or space below the port forthe admission of gas into the circumferential chamber of the regulating-plug, and at the same time the disk float by its downward movement decreases the opening or annular space around the edge, allowing less gas to pass through the opening or space and into the regulating or discharging chamber, with the result of an increased volume or supply of gas under a low pressure entering the governor at the inlet or supply port and a decreased volume or supply passing into the regulating or discharging chamber around the edge of the disk oat, the two volumes or supplies having a correlation by which the predetermined volume of gas will enter the regulating or discharging chamber to pass out therefrom for consumption at the burner or burners.

XIO

passed yby the governor is automatically reg.

ulated and controlled in each instance by the pressure of the gas in the main or supplypipe. The gas from the main or supply-'pipe enters the inlet or supply port under the full pressure and passes into the circumferential .chamber of the .regulating-plug, the volume passing into the chamber being governed by the distance of the valve-inclosed end ofthe supply stem or tube for the governor from the wall or face of the port, and this distance can be increased or decreased for a stated pressure in the main,or supply-pipe by low' decrease of the opening or space around thev disk iioat. rIhe opening or space at the inlet or supply port and the opening or space around the edge of the disk iioat are so calculated and have such relation one to the other that the same volume of gas will enter the regulating or discharging chamber irrespective of the position of the disk iioat in the chamber.

The predetermined volume of gas passing the regulating-chamber can pass through the port h into the by-passage H to be carried to the pointof consumption, and if an increase of the volume Vof gas to be consumed is desired it can be obtained by opening the valve I for gas to escape from under the disk direct into the by-passage, thereby increasing the volume delivered at the point of consumption.

The degree of rise and fall of the disk lioat to coincidingly and properly regulate the opening or space for the inlet or supply port and the opening or space around the edge of the float-disk, so as to always pass the predetermined volume, is controlled bythe position ofthe regulating-plug, and after the position of the plug is once adjusted for the pressure of the gas to pass a given Volume the amount of gas passed by the governor will be to all intents and purposes the same under ordinary varying pressures in the main or supply-pipe. l

What I regard as new, and desire to secure by Letters Patent, is-

1. In a gas-governor, the combination of a oat-dsk located and operating in a regulatingchamber, with a space around its peripheral edge varying in Width with the rise and fall of the float vin the chamber, a supply stem or tube attached to and extending up through the iioat-disk and provided with an opening above the disk for the admission of gas into its interior for passage down through the entire tube and then under the disk, a passage for the admissionof gas into the supply-tube and a passage for conveyinggas from the re ulating-chamber, substantially as describe 2. In a gas-governor, theombination of a regulating chamber having outwardly diverging side walls, a oat-disk located and operating in the chamber and having a diameter to leave a space between its peripheral edge and the wall of the chamber said space being increased or decreased by the rise and fall of the fioat-disk in the chamber, a snpply stem or tube attached to and extending up through the float-disk and provided with an opening above the disk for admission of the gas into its interior for passage down through the tube and under the disk, a passage for admitting gas into the supply-tube and a passage for conveying gas from the regulating-chamber, substantially as described.

3. In a gas-governor, the combination of a regulating chamber having outwardly diverging side walls, a float-disk located and operating in the chamber and having agdiameter to leave a space between its peripheral edge and the wall ofthe chamber said space being increased or decreased by the rise and fall of the fioat-disk in the chamber, a snpply stem or tubeattached to and'extending throughy the Heat-disk and provided with a valve end and a lateral opening for the admission of gas into its interior for passage through the tube and under the disk, a passage for admitting gas into the supply-tube and a passage for conveying gas from the regulating-chamber, substantially as described.

4. In a'gas-governor, the combination of a regulating chamber having V,outwardly-diverging side walls and provided with a seating-boss extending upward from its bottom wall, a iioat-disk located and operati-ng in the chamber and having a diameter to leave a space between its peripheral edge and the wall of the chamber said space being increased and decreased by the rise and fall of the iioatdisk in the chamber, a supply stem or tube attached to and extending through the iioatdisk and provided with a closed head and a lateral opening for the admission of gas into the interior for passage through the tube and under the disk, a hollow plug slidably supporting the carrying-tube and aording a passage for the admission of gas into the supplytube and a passage for conveying gas from the regulating-chamber, substantially as described.

5. In a gas-governor, the combinationof a regulating-chamber having outwardlydiverging side walls and a ioat-disk located and operating in the chamber and having a diameter to leave a space between its peripheral edge and the wall of the chamber said space being increased and decreased by the rise and fall of the Heat-disk in the chamber, a supply stem or tube attached to and extending through the iloat-disk and provided with a valve end and a lateral opening for the admission of gas into its interior for passage through the tube and under the disk,a cap for closing the chamber, a hollow plug adjustably carried by the cap and provided with a port controlled by the valve end of the stem and opening'into the interior of the plug and further provided with a hole, opening into the regulating-chamber and forming a guidewall for slidably supporting the supply-'tube and a passage for conveying gas from the regulating-chamber, substantially as described.

V6. In a gas-governor, the combination of a regulating-chamber having outwardly-diverging side walls and a float-disk located and operating in the chamber and having a diameter to leave a space between its periph# eral edge and the wall of the chamber said space being increased and decreased by the rise and fall of the float-disk in the chamber, a supply stem or tube attached to and extending through the `float-'disk and provided with a valve end and a lateral opening for the admission of gas into its interior for passage through the tube and under the disk, a cap for closing the chamber, a hollow plug adjustably carried by the cap and provided with a port controlled by the valve end of the stem and opening into the interior of the plug and further provided with a hole opening into the regulating-chamber and forminga guide-wall slidably supporting the supply-tube, a passag'e for conveying gas from the regulatingchamber, and a valve-controlled exit below' the float-disk for increasing the flow of gas through the governor, substantially as described.

7. In a gas-governor, the combination of a regulatingchamber having outwardly-diverging side walls and provided with a seating-boss having lugs on its seating-face and extending upward from. the bottom wall o f the chamber, a float-disk located and operat-. ing in the chamber and having a diameter to leave a space between itsperipheral edge and the wall of the chamber saidv space being increased and decreased by the rise and fall of the float-disk in the chamber, a supply stem or tube attached mand extending through the float-disk and provided with a valve end and a lateral opening for the admission of gas into its interior for passage through the tube and under the disk, a cap for closing the chamber provided with an inwardly-extending screw-threaded tubular wall and further provided with screw-threads for attachment to the nipple of a gas-pipe, an adjustable plug screw-threaded into the tubular wall and having an interior chamber, a port leading thereto and'controlled by the valve end of the stem and a hole leading therefrom and forming a guide-wall for slidably supporting the supplytube, a bygpassage above the disk conveying `gas from the regulating-chamber and a valvecontrolled exit below the disk for increasing the ow of gas through the governor, substantially asA described.

JOHN ZANDER. Witnesses:

THOMAS A. BANNING, OSCAR W. BOND. 

